unit eq: atomic history? eq: what is the atom made of? warm-up 1) what type of element is silicon,...

Unit EQ: Atomic History? Unit EQ: Atomic History? EQ: What is the atom made of?EQ: What is the atom made of?

Warm-up Warm-up 1) What type of element is Silicon, 1) What type of element is Silicon, Zinc, Phosphorus, Barium?Zinc, Phosphorus, Barium?

2) How many protons, neutrons and electrons 2) How many protons, neutrons and electrons does Bromine 79 and Bromine 80 have?does Bromine 79 and Bromine 80 have?

Dr. Pariyadath is in the house!!!Dr. Pariyadath is in the house!!!

Unit EQ: How is Periodic Table arranged? Unit EQ: How is Periodic Table arranged?

Warm-upWarm-up1)1) What is group 2 called? What is group 2 called? 2)2) Group 3-12?Group 3-12?

3) What temp. does water boil? freeze? 3) What temp. does water boil? freeze? 4) What 4 things did Dalton say? Which incorrect 4) What 4 things did Dalton say? Which incorrect

and why?and why?

Test FridayTest Friday

Unit EQ:How is periodic table arranged?Unit EQ:How is periodic table arranged?Subatomic particles?Subatomic particles?

Warm-up 10/7/13Warm-up 10/7/13 How many protons, neutrons and electrons How many protons, neutrons and electrons

does Carbon 12 and Carbon 14 have?does Carbon 12 and Carbon 14 have?

Complete problems p116 #21-22Complete problems p116 #21-22 P117 #23-24 p 122 #35-56 p123 #65P117 #23-24 p 122 #35-56 p123 #65 All due on Thursday and Quiz Thursday All due on Thursday and Quiz Thursday

Atomic TheoryAtomic TheoryDemocritusDemocritus 400BC– Indivisible and indestructible 400BC– Indivisible and indestructibleDaltonDalton 1803– 1. Indivisible (wrong because fission – 1803– 1. Indivisible (wrong because fission –

splitting atoms and subatomic particles)splitting atoms and subatomic particles)2. Atoms same element identical- (wrong b/c 2. Atoms same element identical- (wrong b/c

Isotopes – atoms same element different mass)Isotopes – atoms same element different mass)3.combine in simple whole number ratios3.combine in simple whole number ratios4. React by combining, separating and 4. React by combining, separating and

rearrangingrearrangingGoldsteinGoldstein 1886 - proton 1886 - protonThomson Thomson 1897- cathode ray tube- discovered electrons 1897- cathode ray tube- discovered electrons

– Plum pudding model– Plum pudding model

Atomic Theory Cont.Atomic Theory Cont.

RutherfordRutherford 1911– Gold foil experiment 1911– Gold foil experimentDiscovered the nucleus and most of atom is empty Discovered the nucleus and most of atom is empty

spacespace

BohrBohr 1913– electrons occupy fixed 1913– electrons occupy fixed orbitsorbits around around nucleus and can jump up or down by gaining or nucleus and can jump up or down by gaining or losing energylosing energy

MillikanMillikan 1916 – found the quantity of charge of electron 1916 – found the quantity of charge of electron and its mass 1/1840 of hydrogen atomand its mass 1/1840 of hydrogen atom

Chadwick Chadwick 1932– neutron1932– neutron

Current model derived with crazy MathCurrent model derived with crazy Math

Quantum Mechanical ModelQuantum Mechanical Model (Schrodinger) (Schrodinger) also also electron cloud modelelectron cloud model - dense central - dense central nucleus surrounded by electrons in nucleus surrounded by electrons in orbitalsorbitals- - areas of high probability to find electronareas of high probability to find electron

Heisenberg uncertainty Principle- can not tell Heisenberg uncertainty Principle- can not tell the position and velocity of an electron the position and velocity of an electron simultaneouslysimultaneously

The atomThe atom

Subatomic Subatomic particlesparticles

LocationLocation MassMass chargecharge symbolsymbol

protonproton nucleusnucleus 1 AMU1 AMU positivepositive pp++ H H++

neutronneutron nucleusnucleus 1 AMU1 AMU neutralneutral nn

electronelectron in cloud in cloud around around nucleusnucleus

1/1840 1/1840 AMUAMU

negativenegative e-e-

atomic mass unit

Probability of finding blade in blurry regionProbability of finding blade in blurry region

Same idea of Same idea of finding electrons finding electrons around nucleusaround nucleus

Unit EQ:How is periodic table arranged?Unit EQ:How is periodic table arranged?Subatomic particles?Subatomic particles?

Warm-up Warm-up How many protons, neutrons and electrons How many protons, neutrons and electrons

does Carbon 12 and Carbon 14 have?does Carbon 12 and Carbon 14 have?

Read and take notes on chapter 4 and section Read and take notes on chapter 4 and section 6.16.1

Properties of Metals,Non-metals and Properties of Metals,Non-metals and metalloidsmetalloids

List as many properties of each as you can.List as many properties of each as you can.

MetalMetal metalloid Non-metalmetalloid Non-metal

What is a Bohr model?What is a Bohr model?

ductilemalleableshinygood conductors

dullbrittlepoor conductorsinsulators

properties in between

semi-conductor

Some Notes for you. You’re welcomeSome Notes for you. You’re welcome

orbit- fixed path of electron proposed by Bohrorbit- fixed path of electron proposed by Bohr

atomic orbital – region in space where there is atomic orbital – region in space where there is a high probability to find electrona high probability to find electron

quantum of energy- amount of energy to move e- quantum of energy- amount of energy to move e- from one energy level to anotherfrom one energy level to another

principal energy level n=1,2,3,4, and so onprincipal energy level n=1,2,3,4, and so onductile – drawn into thin wiresductile – drawn into thin wires

malleable- hammered into thin sheetsmalleable- hammered into thin sheets

Unit EQ: How is Periodic Table arranged? Unit EQ: How is Periodic Table arranged? EQ: What is percent abundance/composition?EQ: What is percent abundance/composition?

Warm-upWarm-up

1)1) What is percent abundance?What is percent abundance?

Individual X100Total

What is the law of conservation of mass?What is the law of conservation of mass?Why is it so important?Why is it so important?


Warm-upWarm-up1)1) What is the atomic mass of isotopes of What is the atomic mass of isotopes of

carbon-12 and carbon 13 if percent carbon-12 and carbon 13 if percent abundance is 98.9 and 1.10, respectively.abundance is 98.9 and 1.10, respectively.

2)2) 2 isotopes of bromine have masses of 79 2 isotopes of bromine have masses of 79 and 80, the atomic mass of bromine is and 80, the atomic mass of bromine is 79.9, what is the percent abundance of 79.9, what is the percent abundance of each? each?


Warm-up Warm-up

1)1) What is the atomic mass of isotopes of What is the atomic mass of isotopes of oxygen-16, oxygen -17, oxygen –18 . The oxygen-16, oxygen -17, oxygen –18 . The relative abundances are O-16 (99.759%), relative abundances are O-16 (99.759%), O-17 (0.037%), O-18 (0.204%)O-17 (0.037%), O-18 (0.204%)


Warm-up 10/3/11Warm-up 10/3/111)1) What is the noble gas notation of What is the noble gas notation of

Chlorine?Chlorine?2)2) What is the noble gas notation of What is the noble gas notation of

Strontium?Strontium?

- -


Warm-up 10/8/13Warm-up 10/8/13

1)1) What is the atomic mass of isotopes of sulfur-32, What is the atomic mass of isotopes of sulfur-32, sulfur-33, sulfur –34 and sulfur – 36. The sulfur-33, sulfur –34 and sulfur – 36. The relative abundances are S-32 95.022%, S-33 relative abundances are S-32 95.022%, S-33 0.76%, S-34 4.22% and S-36 0.014%.0.76%, S-34 4.22% and S-36 0.014%.

2)2) 2 isotopes of chlorine have masses of 35 and 37, 2 isotopes of chlorine have masses of 35 and 37, the atomic mass of chlorine is 35.453, what is the atomic mass of chlorine is 35.453, what is the percent abundance of each? the percent abundance of each?

Ticket out the Door 9/26Ticket out the Door 9/26

1)1) What is 58What is 58ooC in Kelvin?C in Kelvin?

2)2) How many neutrons does Neptunium-237 How many neutrons does Neptunium-237 have?have?

3) Germanium (Ge) is what type of element?3) Germanium (Ge) is what type of element?4) Element X has 2 isotopes. The first has a 4) Element X has 2 isotopes. The first has a

mass of 134 at 45% abundance, second mass of 134 at 45% abundance, second has mass of 137 at 55%. What is atomic has mass of 137 at 55%. What is atomic mass?mass?

5) What is the name of group 17?5) What is the name of group 17?6) What element is in group 5 period 6?6) What element is in group 5 period 6?

Ticket out the Door RedoTicket out the Door Redo


2)2) How many neutrons does Uranium-235 How many neutrons does Uranium-235 have?have?

3)3) What is the frequency of light with What is the frequency of light with wavelength 6.7 X 10wavelength 6.7 X 10-7 -7 meters? c= 3.0 X meters? c= 3.0 X 101088m/sm/s

4)4) What is electron configuration of Arsenic What is electron configuration of Arsenic (As)?(As)?

5)5) Draw orbital notation of Oxygen?Draw orbital notation of Oxygen?

Video On History of Atom Video On History of Atom

Einstein and Bohr fight over atomic theory Schrodinger and Heisenberg throw down

Ticket out the Door RetakeTicket out the Door Retake


2)2) What is 256 K in Celsius?What is 256 K in Celsius?

3)What element is in group 7 period 3?3)What element is in group 7 period 3?

4)Arsenic (As) is what type of element?4)Arsenic (As) is what type of element?

5)What is the name of group 18?5)What is the name of group 18?

unit eq: atomic history? eq: what is the atom made of? warm-up 1) what type of element is silicon,...

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